Currently we are using the MemoryCurrent property of the OSD service
to determine the used memory of a Ceph OSD. This includes, among other
things, the memory used by buffers [1]. Since BlueFS uses buffered
I/O, this can lead to extremely high values shown in the UI.
Instead we are now reading the PSS value from the proc filesystem,
which should more accurately reflect the amount of memory currently
used by the Ceph OSD.
Aaron and I decided on PSS over RSS, since this should give a better
idea of used memory - particularly when using a large amount of OSDs
on one host, since the OSDs share some of the pages.
[1] https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt
Signed-off-by: Stefan Hanreich <s.hanreich@proxmox.com>
Tested-by: Aaron Lauterer <a.lauterer@proxmox.com>
This new windows provides more detailes about an OSD such as:
* PID
* Memory usage
* various metadata that could be of interest
* list of phyiscal disks used for the main disk, db and wal with
additional infos about the volumes for each
A new 'Details' button is added to the OSD overview and a double click
on an OSD will also open this new window.
The componend defines the items in the initComponent instead of
following a fully declarative approach. This is because we need to pass
the same store to multiple Proxmox.ObjectGrids.
Signed-off-by: Aaron Lauterer <a.lauterer@proxmox.com>
Reviewed-by: Dominik Csapak <d.csapak@proxmox.com>
Tested-by: Dominik Csapak <d.csapak@proxmox.com>
